George R. R. Martin has confirmed that the Hound will be played by Scottish actor Rory McCann. While this wall but certain shortly after GRRM’s clues were cracked, it took until today for there to be an official confirmation from HBO, by way of Jay Tomio of BSC Review. GRRM goes on to add why McCann was selected over other actors, citing both his imposing size, physicality, and his terrific readings.